Fink was a member of Prince's band from 1979. In the live performances around that time before the Dirty Mind album, Matt wore a costume of a jailbird. After that, Fink usually appeared for performance dressed in surgical scrubs and mask. He continued working with Prince until 1991 as an early member of the New Power Generation (though the band was not officially named until after Fink's departure). Fink was also a member of the jazz-fusion band Madhouse.

Following his work with Prince, Fink built his own studio facility StarVu in Minneapolis and started working on many different things, from video game soundtracks to working with K-tel. Doctor Fink also released his own Sony Acid Loop Library entitled Dr. Fink's Funk Factory.

He released an album in 2001 called Ultrasound.

In June 2007, Doctor Fink signed an exclusive management deal for the European market with German-based management and production-company Mozart & Friends.

In a 2008 interview with Minneapolis' "Real Rube Radio", Fink implied he may have a new solo album somewhere in the near future. In the same interview, he mentions Prince possibly releasing the unreleased Revolution album, Roadhouse Garden. Also, when asked about a reunion with the Revolution, he said "...if he's [Prince] ready and willing, then so am I."

As of 2016[update], Fink is part of a Prince tribute band, the Purple Xperience, based in Minneapolis. He is now performing with reformed The Revolution.
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